Seiko Cal. 4428 - 471

Seiko 4428-471

The 4428-471 is a sought-after Automatic piece from Seiko's golden era. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-a39ffb2931a2]

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
40mm
Case Thickness
15.1mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
160m
Dial Color
Silver
Jewels
31j
Frequency
21,600 bph
Power Reserve
69 hours
Year
1977

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